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build(vim-patch): '#ifdef FEAT_' tweaking is N/A #40785

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Filter out `#ifdef` line changes when analyzing C files (*.c, *.h)
via git "-I" flag.

```
-I<regex>
--ignore-matching-lines=<regex>
Ignore changes whose all lines match <regex>. This option may be specified more than once.
```

- https://git-scm.com/docs/diff-options#Documentation/diff-options.txt--Iregex
This commit is contained in:
Jan Edmund Lazo
2026-07-17 07:16:31 -04:00
committed by GitHub
parent 58fe621cfc
commit 0d92bf3761
1 changed files with 5 additions and 1 deletions
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6
scripts/vim-patch.sh
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@@ -926,8 +926,12 @@ is_na_patch() {
grep -Pzc "@@\n-${RT_TITLE_PAT}\+${RT_TITLE_PAT}$")" || true
test "$RT_TITLE_NUM" -ne 1 && return 1
;;
*.h)
HUNKS=$(git -C "${VIM_SOURCE_DIR}" diff-tree --no-commit-id -U0 -r '-I^#\s*(else|endif)' '-I^#\s*(ifdef|if.*defined\().*FEAT_' "$patch" -- "${file}")
test -n "${HUNKS}" && return 1
;;
*.c)
HUNKS=$(git -C "${VIM_SOURCE_DIR}" diff-tree --no-commit-id -U0 -r "$patch" -- "$file" | grep -P '^@@ .* @@')
HUNKS=$(git -C "${VIM_SOURCE_DIR}" diff-tree --no-commit-id -U0 -r '-I^#\s*(else|endif)' '-I^#\s*(ifdef|if.*defined\().*FEAT_' "$patch" -- "$file" | grep -P '^@@ .* @@')
if test -n "$HUNKS"; then
HUNK_NUM_FINAL=$(echo "$HUNKS" | sed 's/^@@ .* @@ \?//' | grep -cv -f "$NA_HUNKS_C")
test "$HUNK_NUM_FINAL" -ne 0 && return 1